US 9,003,381 B2Granted

Context-specific optimized code

OwnerDerek J. Conrod, Subrato K. De +1inventors

InventorsDerek J. Conrod, Subrato K. De, Dineel D. Sule

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Abstract

A computing device comprising a JIT compiler, an application, and a JavaScript Engine. The computing device is adapted to receive at least one identified portion of a JavaScript source code, replace original context specific reference values in the JavaScript with one or more placeholders, and generate a first JIT copy of the code. The computing device is adapted to create a description of the original context specific reference values having one or more requirements, store the description, access runtime information related to the original context specific reference values, compare the runtime information to the stored description, obtain new context-specific reference values, replace/update the placeholders with the new context-specific reference values, generate a second JIT copy of the at least one identified portion of the JavaScript source code comprising the new context-specific reference values, and execute the second JIT copy in the new execution context.

Claims22

Dependent claims

A computing device comprising a processor and a memory, together implementing:

a Just-In Time (JIT) compiler adapted to,
receive at least one identified portion of a scripting language source code, the at least one identified portion of the scripting language source code comprising original context specific reference values,
wherein context specific reference values comprise references to at least a portion of an object in a browsing context of the scripting language source code,
replace each of the original context specific reference values with one or more placeholders, and
generate a first JIT copy of the at least one identified portion of the scripting language source code, wherein the first JIT copy of the at least one identified portion of the scripting language source code comprises the one or more placeholders;
an application adapted to,
store the first JIT copy of the at least one identified portion of the scripting language source code,
create a description of the original context specific reference values, wherein the description has one or more requirements,
store the description of the original context specific reference values,
access runtime information related to the original context specific reference values,
compare the runtime information to the stored description of the original context specific reference values,
obtain new context-specific reference values by using the runtime information when the runtime information satisfies the one more requirements,
replace the one or more placeholders in the first JIT copy of the at least one identified portion with the new context-specific reference values, and
use the JIT compiler to generate a second JIT copy of the at least one identified portion of the scripting language source code, wherein the second JIT copy of the at least one identified portion of the scripting language source code comprises the new context-specific reference values;
and
a scripting language Engine adapted to execute the second JIT copy of the at least one identified portion of the scripting language source code.

13 more elements

A computing system comprising,

means for replacing one or more context-specific references in at least a portion of a scripting language code with one or more dummy variables, wherein the one or more context-specific references comprise references to at least a portion of an object in a browsing context;
means for compiling the at least a portion of a scripting language code;
and
means for executing the at least a portion of a scripting language code across a plurality of browsing contexts.

1 more element

A non-transitory, tangible computer readable storage medium, encoded with processor readable instructions to perform a method of processing at least a portion of a scripting language code comprising one or more first context specific references, wherein context specific references comprise references to at least a portion of an object in a browsing context of the scripting language code, the method comprising,

creating a data file having at least one attribute related to each of the one or more first context specific references, wherein the at least one attribute comprises at least one requirement;
storing the data file;
replacing each of the one or more first context specific references in the at least a portion of a scripting language code with a dummy variable;
compiling the at least a portion of the scripting language code with the dummy variables to create a compiled scripting language code;
storing the compiled scripting language code;
and
executing the compiled scripting language code in a first browser context by,
accessing the data file,
obtaining a runtime value associated with each of the at least one attribute,
comparing each runtime value to the at least one attribute,
determining if each runtime value satisfies the at least one requirement,
obtaining one or more second context specific references for each runtime value that satisfies the at least one requirement,
replacing each dummy variable in the scripting language code with the one or more second context specific references, and
executing the compiled scripting language code with the one or more second context specific references.

11 more elements

Dependencies are inferred from the claim text.